A drop-in replacement for JavaFX's HBox using layout constraints.
So instead of:
HBox lHBox = new HBox(5.0);
Button b1 = new Button("short");
lHBox.getChildren().add(b1);
HBox.setHgrow(b1, Priority.ALWAYS);
You can write:
HBox lHBox = new HBox(5.0);
lHBox.add(new Button("short"), new HBox.C().hgrow(Priority.ALWAYS));
This class is not a reimplementation of HBox, but only applies a different API.